On the left side of the equation is one or more response variables, Y. On the right hand side is one or more predictor variables, X, and their coefficients, B. X, the variables on the right hand side can have many forms and are called by many names.
Subscribe to our Digestive Health e-newsletter to stay up to date on digestive health topics. The exact cause of ulcerative colitis remains unknown. Previously, diet and stress were suspected, but now doctors know that these factors may aggravate but don't cause ulcerative colitis.One possible cause is an immune system malfunction.reviously, diet and stress were suspected, but now doctors know that these factors may aggravate but don't cause ulcerative colitis.
it does not get better with rest and is not directly caused by other medical problems the exact cause of chronic fatigue syndrome cfs is unknown it may be due to epstein barr virus or human herpes virus 6 hhv 6 however no specific virus has been identified as the cause inflammation in the nervous system because of a faulty immune system response